Figure 5-46. Rotor Test

ARMY TM 9-6115-673-13&P

AIR FORCE TO 35C2-3-512-1

NOTE

Place multimeter test leads on edges of slip rings to avoid creating arcs on

brush contact surfaces.

(5)

Using multimeter set for ohms, check rotor for between 3 and 3.5 ohms between slip rings (Figure 5-

46). Also check for open circuits between rotor body and each slip ring. Replace entire rotor

assembly if indications are other than stated.

Figure 5-46. Rotor Test

(6)

Inspect capacitors for evidence of overheating (burned wire/insulation).

(7)

Test capacitors as follows:

(a) Using multimeter set for ohms, connect multimeter leads to capacitor wire lugs. Note ohms

indication on multimeter.

(b) Reverse multimeter leads on capacitor wire lugs. Note ohms indication on multimeter.

(c)

Resistance (ohms) readings should be high in one direction and low in the other. If readings

are high or low in both directions, capacitor is defective and must be replaced.

e. Assembly.

(1)

If removed, install diodes and capacitors. Refer to paragraph 5.30.c.